Electric nail-polishing machine



Nov. 6, 1923.

H. LARRUS ET AL.

ELECTRIC NAIL. PQLISHING MACHINE Filed Feb- 2O 1922 E Sm w/ dm. E 'l Ilv 1....?.

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Patented Nov. 6, 1923.

U N .l T E D T maar nrino'rnrc NAIL-KroLrsrrne MACHINE. i

Application filed February 20, 1922. Serial No. 537,971.

To aZZ whom z'z may concern: Y

Beit known that we, HARRY Lanns and LoIs KRUS'E, citizens of the United `States and of Russia, respectively, and respectively residing at New York city, borough' of Manhattan, New York County, N. Y., and New Yorkcity, borough-ofthe Bronx, in the county of Bronx and State of New York, have invented certain newand useful Improvements'in Electric Nail-Polishing Machines, ofwhich the following is aspeciiication.

vThis invention relates to toilet articles or appliances and has-particular yreference to manicuringv apparatus. v AmongV the'objects of the invention is to provide la machine for the rapid andeflicient polishing of linger nails, a' machine such as is'of peculiar' advantage and merit in beauty parlors Avor manicuring establishments, and throughthev use of' which the 'manicuring op eration may be vperformed exceedingly rapidly `and in a'manner superior Vto the operation ordinarily performed by hand;

More' specifically 'stated the invention Aincludes av polishing toolwith means forattaching' -it to a carrier, the latter being mounted'for rapid reciprocations to and -fro alongfa predetermined line, and including alsoL a resilient or exiblyi supported saddle for supporting the finger in position tohave its nail polished as a result of said reciproca` tions? 1" l f With the foregoing and other objects'in view the invention consists in the arrange-` 2 is a plan view of the same.. Y

AFig "3 is'avertical sectional detail of the finger support, the-sectionbeing in a plane `parallel vto the aforesaid tool carrier:

Fig. 4 is a vertical section on the line 1 -4 o f FigfB f f Fig. 5 1s a sectional detail of the casing holding means,-on the line 5-5 of Fig. f2.V

1Referri-ng'now1more specifically `to the drawings f 10 indicates a base, preferably faced beneath with ffel't l1 VVor its equivalent to reduce `the noise and the possibility .of marringof any table. or other support'upon which the machiney mayv beplacedl in lpiractice. Handles 12=are attached-to the ends of the base for the manipulation ofthe entire machine. Without being unnecessarily krestricted as to size, material, or?configuration4 o f the base,rsuflice it to say thaty it*- is 'ofi rectangular formas shown, a form found in practice to beyeryl satisfactory'- f vAdjacentto onefend of the base is sup-v ported, as upon a'bracket 13, a motor M,the shaft 14C of which is transverse ton the longer axis ofthe base. Any" suitable source of electric energy may bel providedjthe samebeing indicated by the wires -15 connected in. a socketV 16 formed' on or attached to thebase and adjacent to which is any suitable .type of switch 17 for 'starting and stopping the motor in any well known manner..l Y

A pulley 18 is attached to the motor shaft 14, vand arranged `in alignment withethel pulley 18 is a` larger pulley19 fixed to the shaft 2O of a crank wheel 21 having a wristv pin '22. The shaftQO is suitably fjournaled in V.a

bearing 23"- supportedupon af=pedestal 24. Themotor and other high-'speedpartsassociated therewith are preferably coveredhor protected by a casing 25. ofL-shape in -plan view, one vportiony ofthe casi-ng? directly covering the motor and the othe'r` portion covering the crank-'wheel andadjacentcpa'rts, K

leaving space within the angle ofthe casing for the socket 16 and switch 17.. YThe'casin'g isn secured in placepreferably bythe provisionof a seriesv of lugs or. feet 26 extending outwardV from the lower edge of the casing and'with the-irflower -gfacesf'in direct contact with the top of theybase;Y `Each of thesefeet fcarriesa downwardly projecting pin 'or stud 27shown 'as a screw tapped directly yinto ythe 4foot and extending freely into a hole 28 formed inthe base, the headofithe pin or screw projecting; `upward above" the. foot. (1o-operating with this head is a spring-.clip 29 vattached permanently to lthe base by; means of a pivotBO- and having ahole--Bl which receives' the'head of the pin 27 when the Yclip is brought over the foot asshown.

These clips)v are strongf and stiff` enough-to ,hold the casing-dwnfirmly upon the base` andfmovement in anykhorizontal direction is preventedby the pins?? in the holes`28 and the engagement between fthe clips and 4vthe heads of the pins. To remove the casing for access to the motor the clips may be swung around as suggested in dotted lines in Fig. 2 leaving all of the feet Jfree to be lifted with the casing from the position stated.

32 indicates a carrier shown as a straight bar mounted for reciprocations to and tro in the same path7 and supported upon two spaced uprights 33 each having a base 34 secured 1upon the base 10, and each upright being provided with a pair otspaced rollers 35 between rwhich the bar is supported antitrictionally. To one end of the bar or carrier 32 is pivoted at 36 a connecting rod 37 whose other end is mounted on the wrist pin 22.

Connected in any suitable manner to the carrier7 as by means of a clamp 38 having thumb nuts 39, is a tool 40 shown as a burnisher of any suitable construction or design. rlhe connection between the tool and the carrier is such that the active surface of the tool will be reciprocated coincident with the reciprocations of the carrier asI a result of the connection between the carrier and the crank wheel 2l. The rollers 35 compel the carrier to move to and fro in substantially the same line. Because of the nature of the clamp 33 the tool may be readily removed or interchanged as may be required by the operator.

Located directly beneath the tool 40 and midway between the uprights 33 is a finger support 41. This construction includes a pedestal 42 fixed rigidly in any suitable manner upon the base 10 as through a disk 43 and having a vertical central bore 44. Mounted within this bore and adjustable up or down therein is a screw 45 provided 'however with means to prevent rotation of the screw in the pedestal. rlhis means is indicated as a pin or screw 46 iixed laterally into the screw and projecting into a vertical slot 47 formed in one side of the pedestal. Fixed to or otherwise forming a part of the pedestal are a plurality of keepers 48 shown as secured to opposite sides or the pedestal by means ot screws 49. Y These lreepers in clude hooks or ends turned inward toward the axis ot the screw 45 and spaced upward from the other portions of the pedestal, pro` viding a space 50 within which loosely fitted a nut 5l having a knurled periphery through direct Contact with which the operator causes the screw to move up or down. The nut 5l is held resiliently up against the points of the keepers as by means or" a coil spring 52 whose lower end isV supported in an annular recess 53 Jformed in the pedestal. The nut 51 occupies only a portion of the space 50,'leaving a sufiicient space below the nut for the screw to move downward against the force of the springduring the use of the machine. Fixed suitably to the upper end of the screw is a finger rest 54 which in practice is spaced below the tool 40 to admit the customers linger or thumb with the nail thereot' directed toward the tool. The resiliency of the spring and the space 50 afford ample accommodation t'or the customers linger, subject as may be required to adjustment of the screw up or down to suit various sizes or ingers and also possible variations in depth of the working surta-ce or the Vtool beneath the carrier With the nut 5l held normally upward against the upper ends of the keepers'48, by the action or the spring 52, it 'follows that rotation of the nut co-operating with the screw thread.l will cause the screw and finger rest to move either up or down according to the direction of rotation of the nut, the screw being held from rotation by the pin 46. ln all reasonable positions of adjustment or the screw and iinger rest the nut and screw are free to move downward resiliently as far aspermitted by the free space 50 below the nut, and

furthermore it will be noted that the force i into the cavity at the top of the rest with the nails thereof in proximity to the tool 40, the sprinof 52 permitting the rest to move downward slightly so as to maintain a fair degree of rictional contact betweenV the customers nail and the active surface of the tool. With the machine in operation it follows that the nail will be quickly polished and so on with all of the other nails in rapid succession. The operator of the machine naturally is positioned on the opposite side thereof from the customer and controls the operation of the machine.

We claim:

1. In a nail polishingmachine, the combination with a polishing tool, of a rigid bar constituting a carrier to which said tool is fixed, means to recij'irocate said carrier and tool, and means for guiding and supporting the carrier to compel it to move to and tro in the same path, said last mentioned means including a pair otuprights having anti-friction rollers for co-operation with the carrier.

2. In a nail polishing machine, the combination of a base, a pair of uprights extending upward therefrom, spaced rollers in the uprights, a bar supported between said'rollers, power means to reciprocate the bar, a casing for covering the power means, and a polishing member carried by said bar.

3. A device as set forth in claim 2 in which Y the power means is-'an electric motor and the casing' is provided with separable clips Jfor 4. In a nail polishing machine, the combination with a base, a motor thereon, and a casing inclosing the motor, of means for locking the casing to the base and including a pluralitr of lugs fixed to the casing, pins secured in said lugs and extending downward therefrom into holes in the base and also having hea-ds above the lugs, and clips pivoted to the base and movable over the lugs and pin heads, the clips having holes to receive said heads.

5. A finger support for nailV polishing inachines comprising a pedestal having a smooth central bore, a. screw fitted movably in said bore, means to hold the screw from rotation in the bore7 a finger rest carried by pedestal and bearing upward against the nut holding it normally against said keepers, the nut vbeing rotatable within the space aforesaid for adjusting the finger rest up or down, while the tension on the spring remains constant.

In testimony whereoi:l We affix our signatures.

HARRY LARRUS. LOUIS KRAUSE. 

